The fishing bumper sub is a kind of mechanical down jarring tool with long working stroke.
It can jar stuck pipe stem repeatedly to loose stuckpoint to release stuck pipe.
|
Type
|
KXJ44B
|
KXJ46B
|
KXJ56B
|
KXJ62B
|
KXJ70B
|
KXJ80B
|
|
O.D.(mm)
|
114
|
121
|
146
|
159
|
178
|
203
|
|
Waterhole (mm)
|
38
|
38
|
51
|
51
|
70
|
70
|
|
Sealing Pressure (MPa)
|
20
|
20
|
20
|
20
|
20
|
20
|
|
Max Tensile Load (tf)
|
112
|
122
|
132
|
143
|
153
|
163
|
|
Max stroke (mm)
|
1000
|
1000
|
1200
|
1400
|
1400
|
1500
|
|
Connection
|
NC31
|
NC38
|
NC40
|
NC50
|
NC50
|
6 5/8 REG
|
|
Closed Length (mm)
|
2100
|
2110
|
2300
|
2600
|
2650
|
2740
|